国际免疫学杂志
國際免疫學雜誌
국제면역학잡지
INTERNATIONAL JOURNAL OF IMMUNOLOGY
2011年
5期
245-248
,共4页
支原体%宿主细胞%免疫逃避
支原體%宿主細胞%免疫逃避
지원체%숙주세포%면역도피
Mycoplasmas%Antigen variation%Molecular mimicry%Immune escape
支原体是能在无生命培养基中生长繁殖的最小原核细胞型微生物,其种属较多,可广泛寄生于人体、哺乳动物、鸟类及植物中,有很强的致病性。支原体具有独特的生物学结构和功能,其具体的致病机制尚不清楚。近年来研究表明,支原体能在宿主体内的持续性感染是其致病的主要原因。在与宿主的长期共同进化过程中,支原体形成了多种逃逸宿主免疫反应的生存方式,以逃避宿主的免疫应答。
支原體是能在無生命培養基中生長繁殖的最小原覈細胞型微生物,其種屬較多,可廣汎寄生于人體、哺乳動物、鳥類及植物中,有很彊的緻病性。支原體具有獨特的生物學結構和功能,其具體的緻病機製尚不清楚。近年來研究錶明,支原體能在宿主體內的持續性感染是其緻病的主要原因。在與宿主的長期共同進化過程中,支原體形成瞭多種逃逸宿主免疫反應的生存方式,以逃避宿主的免疫應答。
지원체시능재무생명배양기중생장번식적최소원핵세포형미생물,기충속교다,가엄범기생우인체、포유동물、조류급식물중,유흔강적치병성。지원체구유독특적생물학결구화공능,기구체적치병궤제상불청초。근년래연구표명,지원체능재숙주체내적지속성감염시기치병적주요원인。재여숙주적장기공동진화과정중,지원체형성료다충도일숙주면역반응적생존방식,이도피숙주적면역응답。
Mycoplasmas(class Mollicutes)are the smallest prokaryotic organisms that can be self-replicating on laboratory media. These microorganisms are widespread parasites of man, animals, insects and plants. However, the concrete pathogenic mechanisms are still unknown. Recently, more and more studies have shown that Mycoplasmas can reside and replicate intracellularly over extended periods in human cells, consistent with the ability to circumvent immune defense and establish chronic infections. The major mechanisms for its immune escape that have been studied on are anti-phagocytosis of capsule, adhesion and invasion to hosts cells, antigen variation and molecular mimicry.